On Wednesday, April 5th, 2023 at 2:57 PM, Jeanette C. <jul...@mail.upb.de> wrote:
> Hey hey, > I just updated my system today and haven't been able to use certain braille > display functions. Since the installation date is given as a day in February > it could depend on something else. > > BRLTTY allows to use a braille display to manipulate the terminal, move the > cursor or paste text. These functions don't work anymore. Text can be copied > into BRLTTY's buffer, but not pasted, neither can the cursor be summoned to a > valid position on the screen. > > Does anyone have a reasonable idea what may have caused this? > > I have tried this with both the standard Archlinux 6.2.9 kernel and the 6.2.0 > realtime kernel. > > Could there be a permission issue that forbids BRLTTY to write to the console > or permission for USB devices...? > > Any hints would be much appreciated! > > Best wishes, > > Jeanette It may be related to TIOCSTI restriction which started in linux 6.2, see https://bugs.archlinux.org/task/77745 The fix is to re-enable TIOCSTI with sysctl (for current boot only): sysctl -w dev.tty.legacy_tiocsti=1 You can read how to make it permanent here: https://wiki.archlinux.org/title/Sysctl Jordan
